EP 0900404 A1 19990310 - ENHANCED MONOFOCAL INTRAOCULAR LENS
Title (en)
ENHANCED MONOFOCAL INTRAOCULAR LENS
Title (de)
VERBESSERTE MONOFOKALE INTRAOKULARE LINS
Title (fr)
LENTILLE INTRAOCULAIRE MONOFOCALE AMELIOREE
Publication
Application
Priority
- US 9707970 W 19970507
- US 65101796 A 19960521
Abstract (en)
[origin: WO9744698A1] An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus is adapted to be implanted into an eye, placed over the eye, or to be disposed in a cornea of the eye. The ophthalmic lens includes a baseline diopter power for far vision correction, a first zone having a first vision correction power, and a second zone having a second vision correction power. The second zone is located radially outwardly of the first zone. The first zone includes a near vision correction power, and the second zone includes a far vision correction power. A maximum diopter value of the first zone is approximately .7 diopters above the baseline diopter, and a minimum diopter value of the second zone is approximately .5 diopters below the baseline diopter power. The first zone is adapted for focusing light at a first predetermined distance from the retina of the user, and the second zone is adapted for focusing light at a second predetermined distance from the retina of the user. The second predetermined distance is approximately opposite and equal to the first predetermined distance. A third zone, which is substantially similar to the first zone, is located radially outwardly of the second zone, and a fourth zone, which is substantially similar to the second zone, is located radially outwardly of the third zone. A third vision correction power of the third zone is approximately the same as the first vision correction power of the first zone, and a fourth vision correction power of the fourth zone is approximately the same as the second vision correction power of the second zone.
IPC 1-7
IPC 8 full level
A61F 2/16 (2006.01); G02C 7/02 (2006.01); G02C 7/04 (2006.01); G02C 7/06 (2006.01)
CPC (source: EP US)
A61F 2/1613 (2013.01 - EP US); G02C 7/02 (2013.01 - EP US); G02C 7/042 (2013.01 - EP US); G02C 7/044 (2013.01 - EP US); G02C 7/06 (2013.01 - EP US)
Citation (search report)
See references of WO 9744698A1
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
WO 9744698 A1 19971127; EP 0900404 A1 19990310; JP 2000511439 A 20000905; US 5864378 A 19990126; US 6024447 A 20000215; US 6126286 A 20001003
DOCDB simple family (application)
US 9707970 W 19970507; EP 97923632 A 19970507; JP 54247097 A 19970507; US 1431098 A 19980127; US 30223599 A 19990429; US 65101796 A 19960521